(19)

(11)

EP 0 842 242 A1

(12)

(43) Date of publication: 20.05.1998 Bulletin 1998/21 (21) Application number: 96923485.0 (22) Date of filing: 27.06.1996

(51) International Patent Classification (IPC):  C10G 45/ 02( . ) (86) International application number: PCT/US1996/010971 (87) International publication number: WO 1997/003149 (30.01.1997 Gazette 1997/06)

(84) Designated Contracting States: BE DE ES FR GB IT NL (30) Priority: 10.07.1995 US 19950500100 (71) Applicant: CHEMICAL RESEARCH & LICENSING COMPANY Pasadena, Texas 77507 (US)	(72) Inventors: HEARN, Dennis Pasadena, TX 77507 (US) PUTMAN, Hugh, M. Pasadena, TX 77507 (US) (74) Representative: Baillie, Iain Cameron  Ladas & Parry, Altheimer Eck 2 80331 München 80331 München (DE)